Journal of Applied Sciences ›› 2003, Vol. 21 ›› Issue (4): 344-348.

• Articles • Previous Articles     Next Articles

A Novel Beamforming Algorithm in CDMA

FU Yong-sheng, SHEN Lian-feng   

  1. National Key Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2002-08-22 Revised:2002-11-08 Online:2003-12-10 Published:2003-12-10

Abstract: A novel method for beamforming is proposed in a CDMA mobile communication environment and a beamformer rake receiver is formed on this basis. The method based on maximum signal to interference and noise ratio (MSINR) criteria converts the conventional two steps pro blem of seeking the invertion of matrix after knowing the signature vector to computing the largest generalized eigenvector directly. The main advantages of the new technique are that the computation load is reduced, the storage memory is compressed and the training signals and reference signal are not necessary in the procedure. Compared with the code filter algorithm, it is superior to the pilot aided method and its computation load is lower than that of the code filter method. It will be applied in the beamforming of fast fading environment in the third generation mobile communi cation. Back

Key words: MSINR criteria, the generalized eigenvector, beamforming, Rake combiner

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